diff --git a/.travis.yml b/.travis.yml
index 9c38f8c1..7917efa5 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,4 +1,8 @@
 language: ruby
+env:
+  global:
+    - RUBY_GC_MALLOC_LIMIT=90000000
+    - RUBY_FREE_MIN=200000
 rvm:
   - 1.9.3
 before_script: